Conclusion: The Sony Alpha 77 pumps out 24-megapixel stills at 10.3 frames per second and records 1080p60 video with continuous autofocus. Solid low-light performance, a sharp f/2.8 kit lens, a high-quality OLED EVF, and GPS capability round out the package.
Pros: Excellent kit lens. High-resolution sensor. Fast burst shooting. Good high ISO performance. 1080p60 video with autofocus. Crisp OLED EVF. GPS.
Cons: Recovery time needed after burst shooting. No optical viewfinder. Proprietary hot shoe.
Summary: While other manufacturers incrementally improve on the traditional SLR format Sony has shown it's not afraid to innovate by introducing radical new designs into its line-up. The SLT-A77 takes the fixed mirror concept several steps towards becoming a compelling alternative to cameras with reflex mirrors.
But it's not all about the SLT technology. The A77's 24.3 Megapixel sensor is the highest resolution APS-C sensor available to date.
Pros: Big, bright ultra high resolution EVF., 12fps burst mode with AF., 1080p60/50 movie mode., Continuous AF in movie modes ., High quality bright 16-50mm kit lens., 24 Megapixel sensor.
Cons: Limited exposure control at 12fps., Limited movie AF with Manual exposure., Poor menu layout and organisation., Poor battery life compared to a DSLR.
Summary: An impressive specification has certainly grabbed the attention here, and the Alpha 77 has been given more than a few tweaks over its predecessor. Sony has set the bar in several areas, not least of which is the inclusion of a high-resolution imaging sensor and superb LCD screen. Furthermore, it is not implausible that Sony has paved the way for electronic viewfinders to one day replace the optical type.
Summary: With its 12fps burst speed and 24.3MP sensor the Sony A77 packs quite a punch.
Pros: Fastest continuous shooting speed in its class, Excellent image quality, Generous range of HD movie recording options, Lots of useful features and customisation options, EVF is the best we've yet seen
Cons: EVF still not as good as a traditional viewfinder
Summary: The Sony SLT-A77 is the long-awaited replacement for the DSLR-A700, Sony’s previous ‘semi-pro’ DSLR. The A77, of course, isn’t actually a DSLR (Sony doesn’t make them any more), despite looking and handling very much like one. Instead it’s an SLT camera with no pentaprism and no moving mirror, these bits being replaced by a translucent mirror and electronic viewfinder.
Excerpt: The Sony Alpha range of Digital SLR / SLTs all feature built in "anti-shake" / Super steady shot sensors, as a continuation of the Konica Minolta DSLR heritage. The Anti-Shake / AS name was featured on Konica Minolta DSLRs, but canned in favour of Sony's SteadyShot INSIDE name.
Pros: Built in GPS, Extremely fast continuous shooting (12fps), Stunning OLED EVF (has to be seen to be believed), Excellent image quality, Excellent colour, Continuous focus during videos, AF Fine-tuning, Weather sealed magnesium alloy body, ISO50 available, Wide strap and printed manual included
Cons: Higher than expected PF/CA, 16-50mm kit lens increases price by roughly 50%, Non-standard flash hot-shoe
Excerpt: Sony’s SLT-A77 has to be one of the most hotly-anticipated cameras of recent years. Since the Alpha A700 was pulled from production there’s been something of a gap in the Alpha lineup – a gap that the A77 looks to fill. But with its SLT (Single Lens Translucent) construction, it’s not a straight DSLR replacement. So, is this forward-thinking, DSLR-beating material at its best?
Pros: Super-fast burst mode, great movie mode, OLED viewfinder the best electronic viewfinder to date, weather-sealed body, competitive price
Cons: Electronic viewfinder still suffers some lag, poor battery life, 24.3MP sensor doesn’t cut it at higher ISO settings
Excerpt: C'est pour le moment le reflex marquant sur le marché en cette fin d'année 2011 ! Les raisons : un rapport qualité - prix très favorable, Sony poursuivant dans sa politique tarifaire assez agressive. Ainsi pour 1400 euros, on aura un Sony Alpha SLT A77 avec un kit de base (18-55mm), et si l'objectif n'a rien de trop emballant, le boîtier lui emporte plus notre adhésion comme c'était le cas lorsque nous soulignions initialement les éléments à retenir de la fiche technique...
Pros: Qualité d'image jusqu'à 3200 iso, Cadences et rapidité AF, Ecran orientable, Vidéo avec suivi Af par détection de phase, Qualité du viseur électronique
Cons: Viseur électronique pour ceux qui ont encore du mal avec ce type de rendu, Très hautes sensibilités moins utilisables que d'autres reflex